The rules are very simple. I will post a GIF with words and someone needs to reply to that post with another gif with words that might be a logical response to what the other person is saying. So for example if i have...

That's just an example. Now since the idea is to have a conversation gifs without words are discouraged but if you have one that might be a natural response to what the person in the previous gif says, throw it out. So for our buddy Frieza calling us stupid for finding something racist, i might get sad and reflect that with this gif